Ore-grinding mill



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W. N. BEYERLE om: GRINDING MILL 2 Sheets-'Sheet 2 Filed March 4, 1924 HINT/T Beg/@wha INVENTDR ATTORNEY Patented Feb. 16, 1926.

liIILJiIAB/J N. BEYERLE, 0F MESA., ARIZOA.

onneeniivniiie MILL.

Application filed March 4, 1924. Serial No. 696.891.

T0 all 'whom it may concern:

Be it known that I, VILLIAM N. BnYiiaLn, a citizen of the United States, residing at Mesa, in the county of Maricopa and State of Arizona, have invented new and useful Improvements in Ore-Grinding Mills, of which the following is a specification.

This invention relates to ball mills, the general object of the invention being to so construct the device that it can be manu factured to sell at low cost and one which will be solid and compact, thus reducing vibrations to a minimum.

Another object of the invention is to provide means for holding the rotating parts against irregular movement by placing the ly-wheel directly over the balls and providing yielding bearing means for the same.

A still further object of the invention is to provide means for collecting the gold and other metal that cannot pass through the screen.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims. y

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is an elevation of the improved mill.

Figure 2 is a longitudinal sectional view thereof.

Figure 3 is a plan view. Figures 4, 5 and 6 are detail views. In these views, 1 indicates a base upon which the lower member 2 is fastened in any suitable manner.- this lower member being provided with the annular groove 3 for receiving the balls l which may be of solid or hollow construction as desired. A small annular groove 5 is formed in the member 2 adjacent its outer circumference for collecting the gold or other material that cannot pass through the annular screen 6. The upper ymember 7 has an annular groove 8 which engages the tops of the balls so that said upper member is supported by the balls and said member carries the hopper 9 which is arranged to feed the material upon the centrally arranged cone 10 of the lowermember so that it will be directed into the trough part of said lower member. The upper memw ber also carries the weighted fly-wheel 11 which is arranged above the balls so that it will act as ballast and prevent jumping and other unsteady movement of the parts. Posts l2 are connected by the toggle joints l?) with posts 12 embedded in the base and a pair of castings 12 are arranged at the top of each post 12. A bar 17 has each end engaging one casting of each pair and turnbuckle rods 16 each has one end engaging a casting of the other pair.V The other ends of the turn-buckle rods 16 are pivotally connected with the inner end of rod 15 which is slidably supported in a block 19 onthe posts 19. i spring 11i is placed on the rod 15 and is arranged between the nut 18 on said rod and the head or block 19.V The castings on the top of the shafts 12 give flexible movement sidewisewhile the toggle joints 13 permit movement of the shafts 12 in two ways and thus take strain from the shafts 12 which are embedded in the cement base. The posts 12 carry the wheels 2O which may have rubber tires 21 thereon for engaging the flywheel. This arrangement keeps the upper member 7 as well as theiiy wheel ruiming true to dead center thus eliminating any chance of upper and lower members 7 and 2 wearing oblong due to constant pull of the belt. The pull of the belt is taken up by the adjustment of the spring on rod 15 and also acts to steady the rotary parts and thus prevent jumping and swaying of the same. The pan is shown at 23 and this pan is connected with the base.

By making the upper and lower parts as shown no machine work is required and linersr are dispensed with. Thus the entire mill is solid and compact and vibrations are reduced to a minimum. The wheels 20 yieldingly engaging the fiy-wheel also reduce vibration and acts to insure the steady running of the machine as well as to keep the belt tightened. The screen 6 is preferably made ofone piece so that it can be easily and quickly removed and put in place.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claims.

i ui

lhat I claim is Il. A mill of the class described compris-- ing a lower member having an annular trough therein and an annular groove sur-k member resting upon the balls, a hopper carried at the center of the upper member, a weighted fly-wheel carried by the upper member and arranged above the balls, a pair of posts pivotally connected with the base, wheels carried thereby and engaging the flywheel and means for yieldingly holding the wheels against the ily-wheel.

2.' A mill of the class described comprising a lower member having an annular trough the trough, a screen carried by kthe lower member, ballsin the trough, an upper member resting upon theA balls, a hopper carried' at the center of the upper member, a weighted fly-wheel carried by the upper member and arranged above the balls, a pair of posts pivotally connected with the base, wheels carried thereby and engaging the fiy-Wheel, a third post, a rod slidably supported thereby, ka spring on the rod for pressing the same outwardly and members adjustable as to their length for connecting the inner end of the rod with the post.

In testimony whereof I affix my signature.

WILLIAM N. BEYERLE. 

